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Finding the Fourth Proportional to 499,336.60, 749,102.10 and 215,026.60

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Solution

The fourth proportional to 499,336.60, 749,102.10 and 215,026.60 is: 322,581.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,336.60 : 749,102.10 = 215,026.60 : x
  2. Step 2: Convert to fraction form
    499,336.60/749,102.10 = 215,026.60/x
  3. Step 3: Cross multiply
    499,336.60x = 749,102.10 × 215,026.60
  4. Step 4: Simplify right side
    499,336.60x = 161,076,877,615.86
  5. Step 5: Solve for x
    x = 161,076,877,615.86/499,336.60
  6. Step 6: Final answer
    x = 322,581.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.